How do I create a for loop that can use multiple changing variables?

Question

Allison Bushman 2018-12-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/434048-how-do-i-create-a-for-loop-that-can-use-multiple-changing-variables

编辑： Stephen23 2018-12-6

I am trying to create a for loop in which multiple circles move at the same time; however, each circle has a specific angle that it needs to move. How do I create a for loop to match this movement? I have already tried nested for loops and that did not provided that wanted response. Thank you.

P1=[-15,0];
P2=[-5,0];
plot([P1(1) P2(1)],[P1(2) P2(2)],'LineWidth',5,'Color','black');
A=[0,0];
circle=viscircles(A,5,'LineWidth',2,'Color','black');
axis equal
axis off
for b=0:pi/80:pi/8,c=0:pi/40:pi/4,d=0:3*pi/80:3*pi/8,e=0:pi/20:pi/2
    pause(.5)
    B=A+[10*cos((-pi/8)+b), 10*sin((-pi/8)+b)];
    circle2=viscircles(B,5,'LineWidth',2,'Color','green');
    C=B+[10*cos(-(pi/4)+c), 10*sin(-(pi/4)+c)];
    circle3=viscircles(C,5,'LineWidth',2,'Color','blue');
    D=C+[10*cos(-(3*pi/8)+d), 10*sin(-(3*pi/8)+d)];
    circle4=viscircles(D,5,'LineWidth',2,'Color','red');
    E=D+[10*cos(-(pi/2)+e), 10*sin(-(pi/2)+e)];
    circle5=viscircles(E,5,'LineWidth',2,'Color','yellow');
end
axis equal
axis off

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Answer 1

Stephen23 2018-12-5

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/434048-how-do-i-create-a-for-loop-that-can-use-multiple-changing-variables#answer_350735

在 MATLAB Online 中打开

...
b = 0:pi/80:pi/8;
c = 0:pi/40:pi/4;
d = 0:3*pi/80:3*pi/8;
e = 0:pi/20:pi/2;
for k = 1:numel(b)
    pause(0.5)
    B = A+[10*cos(b(k)-pi/8),10*sin(b(k)-pi/8)];
    viscircles(B,5,'LineWidth',2,'Color','green');
    C = B+[10*cos(c(k)-pi/4),10*sin(c(k)-pi/4)];
    viscircles(C,5,'LineWidth',2,'Color','blue');
    D = C+[10*cos(c(k)-3*pi/8),10*sin(d(k)-3*pi/8)];
    viscircles(D,5,'LineWidth',2,'Color','red');
    E = D+[10*cos(e(k)-pi/2),10*sin(e(k)-pi/2)];
    viscircles(E,5,'LineWidth',2,'Color','yellow');
end